Best Online Slot Real Money Casinos

Home » Best Online Casino Games » Best Online Slot Real Money Casinos

Bettors have thousands of online casinos to choose from in the US, but they all want the best. In this article, we’ll show you the best online slots casinos, the best online slots for real money, and how to pick them. You’ll also gain basic knowledge regarding the types of online slots and slots in general.

Rating of the best online casinos 2024

Welcome bonus up to 500€


Welcome bonus up to 2500$


Bonus 600% + 60 Spins

Welcome bonus up to 6000$

Bonus up to 260% + cash-bonus via promo code - BETUS260

Welcome bonus up to 6000$
Welcome bonus 2500$ + 50 free spins on
up to 2200$ slots bonus

First Deposit Bonus up to $1,000


Welcome Bonus up to $2,500 +150 FREE SPINS


Welcome bonus up to 400% up to 4000$


5 Best Real-Money Slots Online for US Players

5 Best Real-Money Slots Online for US Players

With thousands of online slots to choose from, it can be difficult to choose the best. Hence, we’ve done our research to put together the five best real money online slots USA bettors can play.

1. Sweet Bonanza Real Money Slot

This is the best online slot for bettors who are looking to go home with a big win. Sweet Bonanza is a candy-themed online slot from Pragmatic Play. It’s a 6-reel, 5-row online slot that allows bettors to win 21,175x their bet.

Sweet Bonanza is an online slot with medium volatility and a 96.8% Return To Player (RTP). It also offers many exciting features like an all-ways-pay payline, tumbling reels, multipliers, and free spins.

2. Buffalo Gold Slot

With a simple 5×4 layout and 1024 paylines, Buffalo Gold stands as one of the best slots online. This Wild West-themed casino game offers a 96% RTP and medium volatility. Buffalo Gold offers a unique Xtra Power feature, wilds, multipliers, free spins, and a game of choice to double wins.

3. Gates of Olympus Slot

As one of the best online slots from Pragmatic Play, Gates of Olympus features an all-ways-pay payline. It also features 6 reels, 5 rows, and a potential win of 5,000x the bet.

This high-volatility online slot has a high RTP of 96.5%, making it suitable for high rollers. This Ancient Greece-themed slot offers exciting features like free spins, multipliers, tumble reels, and ante bets.

4. Better Wild Slots

This Playtech slot is one of the best slots online for bettors who enjoy the classics. Better Wild is a 5×4 slot with 25 paylines and potential wins of 500x the wager. With its medium volatility and 96.42% RTP, this jewel-themed online slot fits the bill for most players.

5. Lucky 7 Slot

Lovers of the classics will never go wrong with Lucky 7. This is one of the best real money slots online with its 97% RTP and medium volatility. Lucky 7 offers no bonuses, 3 simple reels, and only one payline, making it heaven for simple slot lovers.

How We Pick the Best Online Slots for Real Money In the US

There is a lot that we consider when looking for the best online slots for real money. Most of these factors include:

The RTP of the Game

All online slots have their own RTP values, and 96% is the average that casinos should offer players. Hence, the best slots to play online for real money are those with an RTP of at least 96%.

Game Design

We don’t want our players to have any dull moments. So all the slots that we have on our list offer exciting and innovative game features or some other exciting feature.


The best slots to play online for real money should be fair and able to offer honest gameplay. As such, all the slots on our list come with proper licenses from recognized betting authorities in the US.

Real Money Slots Online vs Free Play

It’s customary to play slots online real money USA, but sometimes playing them for free has its advantages. In the section below, we’ll cover the benefits of playing a slot for real money versus playing it for free.

Real Money SlotsFree Play Slots
Is eligible for bonuses and casino promotionsIs not eligible for any casino bonuses or promotions
Allows players to win real money when they win in the gamePlayers only win virtual cash when they win in the game
Requires players to register at the casinos to play themCan be played without any registration required

Highest Paying Casino Online Slots

All online slots differ in the amount of payout that they offer. The best online slots will always have an advantage in their RTP and volatility, allowing them to offer a good payout combination. To this effect, if you’re looking for the best slots online in terms of payout, they’re shown below.

Slot GameRTP
1429 Uncharted Seas98.5%
Opal Fruits97.75%
White Rabbit Megaways97.7%

Advantages of Playing Online Casino Slots

There are many reasons why it’s better to play the best slot online than to visit a traditional casino, and they are:

Play with Bonuses

Online casinos offer bonuses that enrich your online gaming session, such as free spins and free cash deposits. This beats what you can get when you visit most land-based casinos as a regular bettor.

Enjoy Your Land-Based Casino Slots Online

Online betting platforms also offer the classics. This means that many of those slots that were popular at brick-and-mortar casinos have been adapted for online gaming.

Play for Free

To play the best online slots real money is no longer a requirement, as demo gameplay is now available. So, bettors that gamble online can try nearly all online games for free before playing for real money if they wish.

Popular Online Slots Types in 2024

Popular Online Slots Types in 2024

The online slot industry is now populated with thousands of titles, including the classics and some innovative creations from modern software developers. Among these titles, however, some slot categories have stood out as the most successful. Below, we’ll be showing you the most popular online slot types for 2024.

  • Classic Slots: This is the slot game that most older bettors were introduced to, the type that is adapted from physical slot machines. These slots usually come with 3 reels, simple paylines, and no bonus features.
  • Slots with Bonuses: These are the slots that defined the online betting space and are known for their innovative bonus features. This includes simple things like free spins and multipliers as well as other features like prize wheels.
  • 6-reel Slots: This is another category of modern slots, but it’s one that offers 6 reels. These slots can offer extremely large paylines (more than 100,000) and exciting bonuses as well.

Best Progressive Online Slots for Real Money

One of the best online slots USA real money games you’ll encounter is a progressive slot. Progressive slots are games where a portion of all player deposits go to a collective jackpot.

Progressive jackpots are some of the best slots online, as they’re triggered at random. As long as you deposit the required stake, you stand a chance of triggering the jackpot and winning its pot.

Bettors in the US may get access to a wide variety of progressive slot games, but these are the best among them:

Gong Xi Fa Cai (from IGT)

This is an Asian-themed slot from IGT featuring free spins, multipliers, and, of course, a progressive jackpot. The progressive jackpot in this game is triggered by matching three colored gems.

Stellar Jackpots with Silver Pride (from Lightning Box)

This is an African-themed online slot from Lightning Box with 1,024 paylines. There are three jackpots in this game (Mini, Minor, and Major), and bettors trigger them when they land 3 spaceship symbols.

Divine Fortune (from NetEnt)

This is another progressive jackpot with three jackpots to win: Minor, Major, or Mega jackpots. Divine Fortune is a 5-reel slot with 3 rows, 20 paylines, and exciting features like free spins, falling wild respins, and wild substitutions.

Loot’EnKhamun (from WinStudios)

This is one of the most popular progressive jackpot slots open to US bettors, with a payout of up to $3 million. There are five jackpots to win from this game: Blitz Cash, Quick Cash, Super Cash, Mega Cash, and Colossal Cash.

Is Playing Online Casino Slots on Mobile Possible?

Yes, it’s possible to play online slots on mobile devices, either through a mobile browser or by downloading an app. Playing the best online slots from your mobile phone is the rave these days, as both real money and free versions are available.

How to Download a Casino App

You can improve your betting experience by downloading the casino app for your favorite US casino, and we’ll show you how.

  • For Android Phones: Android phone users will need to visit the official website of their preferred casino to download its mobile app. Most Android casino apps need the Android 5.0 operating system or higher to function.
  • For iOS Devices: iPhone and iPad users will find most casino apps on their App Store. These apps usually require the iOS 10 operating system or higher to run.

US Mobile Casinos with Slots for Real Money

In this section, we’ll show you US casinos where you can go to play the best online slots for real money.

Name of CasinoNumber of SlotsApps Available
Golden Nugget Casino550+iOS, Android
Borgata Casino380+iOS, Android
SugarHouse Casino200+iOS, Android
Mohegan Sun Casino200+iOS, Android
Resorts Casino150+iOS, Android
BetMGM Casino80+iOS, Android

Online Slots Software Providers

There are quite a few software providers licensed in the US, and most of them are developers of online slots. The best among these software providers that have been known to offer high-quality online slot games are:

WMS Gaming

WMS Gaming, or Williams Interactive, is a software developer that was established in 1943. This casino company is known for its classic real money games, which have remained its calling card even after becoming a Scientific Games subsidiary. Noteworthy online slots from WMS Gaming include Castle King, The Game of Life, and Raging Rhino.


This software developer is one of the oldest in the US, having been established in 1932. Bally is also another software provider that has become a subsidiary of Scientific Games. Bally is recognized for its popular online slots, such as Sun Dragon, Cash Spin, and 88 Fortunes Megaways.


Established in 1975, International Game Technology (IGT) is one of the best online slot developers in the US. Some of the best online slots from this developer are Cleopatra and Da Vinci Diamonds, along with progressive jackpot slots like Gong Xi Fa Cai.


WINStudios started in 1997 developing casino software for Party Gaming (Bwin). They also offer some of their slot titles to partner casinos in the US, and some of these titles include Cry Wolf and Loot’EnKhamun.


NextGen Gaming, or NYX Interactive, is an arm of the NYX Group and was established in 1999. This casino company is known for its high-quality slots, some of which include The Wild 3, Bars & Bells, and Astro Cat.


This Swedish software provider began its journey in the iGaming industry in 1996. Although NetEnt has dazzled bettors with its offerings in various categories, its online slots still remain the best. Some of the most popular NetEnt slots are Jack Hammer, Divine Fortune Megaways, and Gonzo’s Quest.

Online Slot Strategies to Consider

Online slots are famous for being easy to play, but winning is something different. If you want to win the best slots online, you should consider these strategies.

1. Choose the Highest RTP

All slots have an inherent Return To Player (RTP), and this determines the likelihood of winning in the game. So, higher RTP percentages are always better.

2. Choose a Game You Enjoy

When you’re playing a slot game that you enjoy, you’re less likely to get bored. So, choose the best online slot that embodies all you want in a slot game.

3. Test the Volatility with Demo Play

The volatility of a slot defines the frequency of landing winning combinations. So, you should test a new slot to see if you’re confident in winning with its level of volatility.

4. Increase Your Wagers for a Progressive Jackpot

All progressive jackpots come with a minimum stake to qualify for the pot. So, if you want to play a progressive jackpot slot, increase your stakes first.

5. Claim Your Casino Free Spins

Free spins allow you to play a few rounds of the best slots online without making a deposit. So, consider them when trying a slot game.

States with Legal Online Casinos

Online betting is legal in many states in the US, with bettors being able to wager at regulated casinos. If you want to deposit and win real money, you’ll have to play in a state where online betting is legal, such as:


Governor Gretchen Whitmer made online betting legal in 2019 when she put forward laws regulating sports betting, poker, and casino games.

New Jersey

New Jersey is home to some of the biggest online casinos in the US (like the Borgata Casino). It was a pioneer in the movement to legalize gambling over the internet.


Pennsylvania also joined the list of states to legalize betting in 2017. Now, it offers many licensed casinos where bettors can go to enjoy their favorite games.

West Virginia

Online casino regulation entered West Virginia in 2019, and now this state offers regulated betting services in the sports and online casino categories.


Online betting is also legal in Connecticut, and popular US casinos will soon start offering their services there.

The Various Types of Slot Machines

There are various categories of slot machines available to give you an exciting betting experience, and they are:

Three-Reel Slots

These are the classic slot games with 3 reels, straightforward bonus features, and simple gameplay.

Five-Reel Slots

This is a category of modern slot games that offers 5 reels, which also allows it to offer many paylines. You’ll also find some exciting bonus features in such slots.

Multi-Payline and Multi-Reel Slots

These are slots with many reels (going up to 10) and paylines (going up to 100,000). Most times, these slots are paired with an all-ways-pay winning system.

Video Slots

Video-based slots are slot machines with high-quality graphics, beautiful sound effects, a large number of reels, and many bonus features.

3D Slots

These are the online slots that have truly defined the modern era. They offer movie-like animations, top-notch music, innovative bonuses, and immersive storylines.

Progressive Slots

These are slots that offer a random jackpot that’s pooled from a small portion of all player bets.

Branded Slots

This is one of the best USA online real money slots as it caters to fans of a sport, celebrity, or TV program. It allows bettors to enjoy exciting moments from TV programs, sports, or even the life of a celebrity as a slot game.

Frequently Asked Questions

How Do Online Slots Work?

Online slots work by betting money on them, clicking the spin button, and watching the reels spin. If the reels stop according to a payline or winning combination, then you win money.

Can I Play Slots for Free?

Yes, you can play slots for free when you play their demo versions.

What Should I Look For in an Online Slot Casino?

When you want to visit an online slot casino, you should consider its bonuses, license, customer support, online reputation, and game library.

What’s a Progressive Jackpot?

A progressive jackpot is a game that builds up a huge payout over time and pays it to one lucky bettor.

Can I Win Real Money Playing Online Slots?

Yes, you can win real money when you play the best real money slots online.

Are Online Slot Casinos Trustworthy?

Yes, online slot casinos are trustworthy when they’re licensed and possess a good reputation. You’ll find some trustworthy online casinos in our list of recommendations.

How Do Welcome Bonuses Work?

Welcome bonuses are promotions that are open only to new players in a casino. It offers them free spins in a slot game or free money when they register and deposit money at the casino. Any winnings from a welcome bonus can only be withdrawn when its wagering requirements are satisfied.

Which Online Slots Payout the Most?

Progressive jackpot slots pay the most, and some of them are Divine Fortune and Gong Xi Fa Cai.

How Do I Pick a Winning Slot Machine?

You can pick a winning slot machine when you choose a progressive jackpot slot with a small jackpot or a simple slot machine.

Are Online Slots Rigged?

No, online slots are not rigged, as they work with Random Number Generators (RNG).

How Do I Pick a Good Slot Machine?

You pick a good slot machine when you select an online slot with a high RTP, high payouts, and available casino bonuses.

What Is the Best Online Slot Site?

The best online slot sites are those that are licensed, have a good reputation, and also offer good slot bonuses.

Are Online Slots Safe to Play?

Yes, online slots are safe to play as long as you’re playing them at a licensed US casino.

What Are Paylines?

Paylines are the combinations of game symbols on the reels of a slot machine that award prizes.

How Many Paylines Do Online Slots Have?

Online slots have many paylines, ranging from 1 payline in 3-reel slots to more than 100,000 in megaway slots.

How Many Paylines Do Online Slots Have?

Online slots have many paylines, ranging from 1 payline in 3-reel slots to more than 100,000 in megaway slots.

What’s Different between High-Stakes and Low-Stakes Slots?

High-stakes slots are those slot games that allow a wager of $500 or higher. Low-stake are those slots that start their wager as low as $0.01.

What Qualities Should I Look For in an Online Slot Casino?

You should look at the user-friendliness of the site, its bonus offer, its mobile optimization, and its customer support.

How Much Can I Bet on an Online Slot?

You can bet up to $500 in high-stakes online slot games, and in rare cases, even more.

Can I Win Real Money Playing Online Slots?

Yes, you can win real money playing online slots when you register at the casino first and deposit money.